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Mary Mckenna — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Mckenna across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | McKenna |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1929 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mckenna | Daughter | — | 11 | ~1929 |
| Elizabeth Mckenna | Daughter | — | 15 | ~1925 |
| Christopher Mckenna | Head | — | 49 | ~1891 |
| Francis Mckenna | Son | — | 7 | ~1933 |
| Christopher Mckenna | Son | — | 19 | ~1921 |
| Bernard Mckenna | Son | — | 17 | ~1923 |
| Mary Mckenna | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 1
Wayne, Michigan · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKenna |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Ohio |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 11
Wayne-County, Michigan · implied b. ~1929 — 7 household members
| Surname | McKenna |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Mckenna across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckenna
Daughter · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Christopher Mckenna
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Mckenna
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Mckenna
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mckenna
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-01889-00034)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Vincent Pollaccia | 54 | Head | Plasterer | Italy |
| 42 | Laura Pollaccia | 48 | Wife | — | Italy |
| 43 | Frances J. Pollaccia | 25 | Daughter | Sewing | Michigan |
| 44 | Anthony J. Pollaccia | 24 | Son | Plasterer | Michigan |
| 45 | Florence L. Pollaccia | 22 | Daughter | Power Machine | Michigan |
| 46 | Frank J. Pollaccia | 19 | Son | Apprentice | Michigan |
| 47 | Josephine L. Pollaccia | 16 | Daughter | — | Michigan |
| 48 | Leon F. La Motte | 42 | Head | Assistant Foreman | Michigan |
| 49 | Beulah La Motte | 40 | Wife | — | Indiana |
| 50 | Donald L. La Motte | 17 | Son | Delivery Boy | Michigan |
| 51 | Joyce D. La Motte | 16 | Daughter | — | Michigan |
| 52 | Jack D. La Motte | 13 | Son | — | Michigan |
| 53 | Gerald E. La Motte | 6 | Son | — | Michigan |
| 54 | Pearce Howlow | 40 | Head | Clerk | Newfoundland |
| 55 | Madeline Howlow | 31 | Wife | Bookkeeper | New York |
| 56 | Betty Howlow | 14 | Daughter | — | Michigan |
| 57 | Henry Jones | 63 | Lodger | Parquet Work | New York |
| 58 | Adelaide R. Jones | 53 | Lodger | — | New York |
| 59 | Robert E. Jones | 11 | Lodger | — | Michigan |
| 60 | Horace Richardson | 36 | Head | Inspector | Illinois |
| 61 | Agnes Richardson | 38 | Wife | — | Pennsylvania |
| 62 | Christopher Mckenna | 49 | Head | Paper Ruler | Ireland |
| 63 | Mary Mckenna | 43 | Wife | Stationery Clerk | Ohio |
| 64 | Christopher L. Mckenna | 19 | Son | New Worker | Michigan |
| 65 | Bernard J. Mckenna | 17 | Son | — | Michigan |
| 66 | Elizabeth J. Mckenna | 15 | Daughter | — | Michigan |
| 67 | Mary M. Mckenna THIS PERSON | 11 | Daughter | — | Michigan |
| 68 | Francis M. Mckenna | 7 | Son | — | Michigan |
| 69 | William Hanken | 49 | Head | Operator | Michigan |
| 70 | Mary Hanken | 47 | Wife | — | Canada-English |
| 71 | Mary E. Hanken | 22 | Daughter | Housework | Michigan |
| 72 | Cecelia R. Hanken | 19 | Daughter | Counter Girl | Michigan |
| 73 | Edward W. Hanken | 17 | Son | Ticket Taker | Michigan |
| 74 | John M. Hanken | 15 | Son | — | Michigan |
| 75 | Glenn Mansfield | 51 | Head | Plant Protection | Ohio |
| 76 | Agnes Mansfield | 49 | Wife | — | Michigan |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)